We must not be watching the same videos. I cannot count the times he has pointed out the power efficiency and how you don't need an overkill power supply. Or that you don't need this or that component unless you're gaming at 4k. Or his preference for mafugly noctua fans over anything flashy. And yeah, he does ridiculously high-end builds sometimes, and completely impractical stuff like "let's see how many gamers we can stuff onto this one machine", and stupid but fun stuff, but isn't that why a lot of people watch his channels?